Groups > comp.soft-sys.math.mathematica > #2792

Using the Combinatorica Package in my own package

From	Karl Schulz <karlschulz@pwned.de>
Newsgroups	comp.soft-sys.math.mathematica
Subject	Using the Combinatorica Package in my own package
Date	2011-05-30 10:34 +0000
Organization	Steven M. Christensen and Associates, Inc and MathTensor, Inc.
Message-ID	<irvrs1$8ij$1@smc.vnet.net> (permalink)

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Hello all,

I am currently trying to create my first package in mathematica 8.0.

I tried the reference package from http://reference.wolfram.com/mathematica/tutorial/SettingUpMathematicaPackages.html, which worked without a problem.

In my own package, I would like to use the package combinatorica for the numbers of vertices of a graph V[G], since I would like to create multiple arrays with V[G] entries.

So I tried the following:
----------------------------
BeginPackage["karl`"]

Needs["Combinatorica`"] 

Begin["`Private`"]

karl[G_]:=Array[numberone, V[G]];
Array[numbertwo, V[G]];

End[ ]
----------------------------
Which gave me the following message:

Array::ilsmn: "Single or list of non-negative machine-sized integers expected at position 2 of Array[numbertwo,V[G]]. "
EndPackage[ ]

I then tried karl[G_Graph] to see if that fixed it, but the same error occurs.

Can someone see my error or suggest a fix? Thank you :-)

Many greetings,
Karl Schulz

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Using the Combinatorica Package in my own package Karl Schulz <karlschulz@pwned.de> - 2011-05-30 10:34 +0000
  Re: Using the Combinatorica Package in my own package "Nasser M. Abbasi" <nma@12000.org> - 2011-05-31 11:47 +0000

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